Thread.ApartmentState 属性

参考

定义

命名空间:: System.Threading

程序集:: System.Threading.Thread.dll

程序集:: netstandard.dll

程序集:: mscorlib.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

注意

The ApartmentState property has been deprecated. Use GetApartmentState, SetApartmentState or TrySetApartmentState instead.

注意

The ApartmentState property has been deprecated. Use GetApartmentState, SetApartmentState or TrySetApartmentState instead.

注意

Deprecated in favor of GetApartmentState, SetApartmentState and TrySetApartmentState.

获取或设置此线程的单元状态。

public:
 property System::Threading::ApartmentState ApartmentState { System::Threading::ApartmentState get(); void set(System::Threading::ApartmentState value); };

[System.Obsolete("The ApartmentState property has been deprecated.  Use GetApartmentState, SetApartmentState or TrySetApartmentState instead.", false)]
public System.Threading.ApartmentState ApartmentState { get; set; }

[System.Obsolete("The ApartmentState property has been deprecated. Use GetApartmentState, SetApartmentState or TrySetApartmentState instead.")]
public System.Threading.ApartmentState ApartmentState { get; set; }

public System.Threading.ApartmentState ApartmentState { get; set; }

[System.Obsolete("Deprecated in favor of GetApartmentState, SetApartmentState and TrySetApartmentState.")]
public System.Threading.ApartmentState ApartmentState { get; set; }

[<System.Obsolete("The ApartmentState property has been deprecated.  Use GetApartmentState, SetApartmentState or TrySetApartmentState instead.", false)>]
member this.ApartmentState : System.Threading.ApartmentState with get, set

[<System.Obsolete("The ApartmentState property has been deprecated. Use GetApartmentState, SetApartmentState or TrySetApartmentState instead.")>]
member this.ApartmentState : System.Threading.ApartmentState with get, set

member this.ApartmentState : System.Threading.ApartmentState with get, set

[<System.Obsolete("Deprecated in favor of GetApartmentState, SetApartmentState and TrySetApartmentState.")>]
member this.ApartmentState : System.Threading.ApartmentState with get, set

Public Property ApartmentState As ApartmentState

属性值

ApartmentState

ApartmentState 值之一。初始值为 Unknown。

属性: ObsoleteAttribute

例外

ArgumentException

尝试将此属性设置为不是有效单元状态的状态（单线程单元 (STA) 或多线程单元 (MTA) 以外的状态）。

示例

下面的代码示例演示如何设置线程的单元状态。

using namespace System;
using namespace System::Threading;
ref class ApartmentTest
{
public:
   static void ThreadMethod()
   {
      Thread::Sleep( 1000 );
   }

};

int main()
{
   Thread^ newThread = gcnew Thread( gcnew ThreadStart( &ApartmentTest::ThreadMethod ) );
   newThread->SetApartmentState(ApartmentState::MTA);
   
   Console::WriteLine( "ThreadState: {0}, ApartmentState: {1}", newThread->ThreadState.ToString(), newThread->GetApartmentState().ToString() );
   newThread->Start();
   
   // Wait for newThread to start and go to sleep.
   Thread::Sleep( 300 );
   try
   {
      
      // This causes an exception since newThread is sleeping.
      newThread->SetApartmentState(ApartmentState::STA);
   }
   catch ( ThreadStateException^ stateException ) 
   {
      Console::WriteLine( "\n{0} caught:\n"
      "Thread is not in the Unstarted or Running state.", stateException->GetType()->Name );
      Console::WriteLine( "ThreadState: {0}, ApartmentState: {1}", newThread->ThreadState.ToString(), newThread->GetApartmentState().ToString() );
   }

}

using System;
using System.Threading;

class ApartmentTest
{
    static void Main()
    {
        Thread newThread = 
            new Thread(new ThreadStart(ThreadMethod));
        newThread.SetApartmentState(ApartmentState.MTA);

        Console.WriteLine("ThreadState: {0}, ApartmentState: {1}", 
            newThread.ThreadState, newThread.GetApartmentState());

        newThread.Start();

        // Wait for newThread to start and go to sleep.
        Thread.Sleep(300);
        try
        {
            // This causes an exception since newThread is sleeping.
            newThread.SetApartmentState(ApartmentState.STA);
        }
        catch(ThreadStateException stateException)
        {
            Console.WriteLine("\n{0} caught:\n" +
                "Thread is not in the Unstarted or Running state.", 
                stateException.GetType().Name);
            Console.WriteLine("ThreadState: {0}, ApartmentState: {1}",
                newThread.ThreadState, newThread.GetApartmentState());
        }
    }

    static void ThreadMethod()
    {
        Thread.Sleep(1000);
    }
}

Imports System.Threading

Public Class ApartmentTest

    <MTAThread> _
    Shared Sub Main()
    
        Dim newThread As Thread = New Thread(AddressOf ThreadMethod)
        newThread.SetApartmentState(ApartmentState.MTA)

        Console.WriteLine("ThreadState: {0}, ApartmentState: {1}", _
            newThread.ThreadState, newThread.GetApartmentState())

        newThread.Start()

        ' Wait for newThread to start and go to sleep.
        Thread.Sleep(300)
        Try
            ' This causes an exception since newThread is sleeping.
            newThread.SetApartmentState(ApartmentState.STA)
        Catch stateException As ThreadStateException
            Console.WriteLine(vbCrLf & "{0} caught:" & vbCrLf & _
                "Thread is not In the Unstarted or Running state.", _
                stateException.GetType().Name)
            Console.WriteLine("ThreadState: {0}, ApartmentState: " & _
                "{1}", newThread.ThreadState, newThread.GetApartmentState())
        End Try

    End Sub

    Shared Sub ThreadMethod()
        Thread.Sleep(1000)
    End Sub

End Class

注解

ApartmentState属性已过时。 非过时的替代方法是检索单元状态 GetApartmentState 的方法和设置单元 SetApartmentState 状态的方法。

在 .NET Framework 1.0 和 1.1 版中，属性标记一个线程，以指示它将在单线程单元或多线程单元 ApartmentState 中执行。当线程进入或线程状态时，可以设置此属性;但是，只能为线程设置 Unstarted Running 一次此属性。如果尚未设置属性，则返回 Unknown 。

尝试使用 ApartmentState 属性设置已设置了单元状态的线程的单元状态。但是， SetApartmentState InvalidOperationException 在这种情况下，方法将引发。

重要

在 .NET Framework 版本2.0 中，新线程将初始化，就好像它们在 ApartmentState.MTA 启动之前尚未设置其单元状态。默认情况下，主应用程序线程将初始化为 ApartmentState.MTA 。你不能再 ApartmentState.STA 通过设置第一行代码的属性，将主应用程序线程设置为 System.Threading.ApartmentState 。改为使用 STAThreadAttribute 。

在 .NET Framework 版本2.0 中，可以使用/CLRTHREADATTRIBUTE (Set CLR Thread Attribute) 链接器选项为 c + + 应用程序指定 COM 线程模型。

适用于

通过

Thread.ApartmentState 属性

定义

属性值

例外

示例

注解

适用于

另请参阅

其他资源